Home / 22,743.70-31,386.02-12,672.12

Finding the Fourth Proportional to 22,743.70, 31,386.02 and 12,672.12

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Solution

The fourth proportional to 22,743.70, 31,386.02 and 12,672.12 is: 17,487.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,743.70 : 31,386.02 = 12,672.12 : x
  2. Step 2: Convert to fraction form
    22,743.70/31,386.02 = 12,672.12/x
  3. Step 3: Cross multiply
    22,743.70x = 31,386.02 × 12,672.12
  4. Step 4: Simplify right side
    22,743.70x = 397,727,411.76
  5. Step 5: Solve for x
    x = 397,727,411.76/22,743.70
  6. Step 6: Final answer
    x = 17,487.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.